43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fapple-kext -emit-llvm -o - %s | FileCheck %s
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// CHECK: @_ZTV5TemplIiE = internal unnamed_addr constant { [5 x ptr] } { [5 x ptr] [ptr null, ptr @_ZTI5TemplIiE, ptr @_ZN5TemplIiE1fEv, ptr @_ZN5TemplIiE1gEv, ptr null] }
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struct Base {
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virtual void abc(void) const;
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};
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void Base::abc(void) const {}
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void FUNC(Base* p) {
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p->Base::abc();
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}
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// CHECK: getelementptr inbounds (ptr, ptr @_ZTV4Base, i64 2)
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// CHECK-NOT: call void @_ZNK4Base3abcEv
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template<class T>
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struct Templ {
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virtual void f() {}
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virtual void g() {}
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};
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template<class T>
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struct SubTempl : public Templ<T> {
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virtual void f() {} // override
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virtual void g() {} // override
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};
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void f(SubTempl<int>* t) {
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// Qualified calls go through the (qualified) vtable in apple-kext mode.
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// Since t's this pointer points to SubTempl's vtable, the call needs
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// to load Templ<int>'s vtable. Hence, Templ<int>::g needs to be
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// instantiated in this TU, for it's referenced by the vtable.
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// (This happens only in apple-kext mode; elsewhere virtual calls can always
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// use the vtable pointer off this instead of having to load the vtable
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// symbol.)
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t->Templ::f();
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}
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// CHECK: getelementptr inbounds (ptr, ptr @_ZTV5TemplIiE, i64 2)
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// CHECK: define internal void @_ZN5TemplIiE1fEv(ptr {{[^,]*}} %this)
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// CHECK: define internal void @_ZN5TemplIiE1gEv(ptr {{[^,]*}} %this)
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